1975 Swinger slant 6 Rallye wheels from Coker

Usually it's /6 and drum brakes , then it's small bolt pattern. V8 and disc brakes , then it's big bolt. There are always a few exceptions with our Mopars !!!
Small bolt pattern disc brakes only thru 1972. K-H 4 piston type.

1973 up disc brakes are big bolt pattern and single piston calipers.

You wont find 4 piston small bolt pattern brake setup on a 73 up A body unless somebody swapped it onto the car after it left the factory